Door arrangement for dumping-cars.



E, W, SUMMERS. BGQR @RANGEMENT FOB DUMP HI@ GARS.

AAPPLIOATION FILED 05'2- 8, 1903.

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llNlllED STATES rmrnnfr onmgon Enden w. sumisas, or PITTSBURGH, rn'nnsynvnme noon anennonnnnr roza DUMPINo-oaas.

Specification of ,Letters Patent.

Patenten sepa `lo. 1ere.

Application filed October 8, 190B. Serialylo. 456,809'.

hopper bottoni cars which provide a large.-

opening for the discharge of the lading, and which enable the center of the gravity of the loaded car to be carried quitelow and nevertheless permit the opening of the doors without contacting withthe track.

The invention comprises the arrangement and combination 'of partshereinafter de scribed and claimed.

In the accompanying drawings Figure 14 is la vertical transverse section through a car embodying the invention, one-half of said ligure. being taken at the end of a door and the other part being taken through a door, parts i being broken away to more clearly show the construction; Fig. 2 is` a plan View, parte being broken away, of the doors and their operating mechanism; and lFig. 3 is a vertical section taken longitudinally oi the car on line 33 Fig. l.

The doors are shown applied to a center dischar shopper oar, such as an ore car, but it will l e understood that it can he applied to any hopper ca r with the doors arranged eitherlongitudinally or transversely. As shown in the drawings the car body is provided with end sloping door plates 1, and side sloping plates S3 which narrow the body somewhat .et the bottom- These sloping.

plates provide a very large center opening extending Sidevise beyond the wheels, vhwh are shown et 3 'and extending longitudinally of the car between the wheels. vides aV large opening for the rapid dis-N charge or' the lading, and one which pre vents" the lading, such as iron ore, from bridging or arching over the opening. Thedischarge opening is closed by two doors 4 and 5 which entend longitudinally ot the car and close toward the center line of the car, the specific arrangement shown having theinner edges of the doors abutting, as shown 1n lligsxl and 2. The doors whenclosed slope 1nwardly and downwardly and are provided at their ends with vertical portions 6 which extend upwardly and are located underneath the inner edges of the end floor plates l.V 'jl-he outer edges of the doors also are preferably turned upwardly slight-ly as at 7 and lie underneath the side sloping plates.

2. The upturned outer edges and the upturned end portions give stiffness to the doors and the doors are further stiiened by n having their inner edges flanged downwardly, as at 8, and also having secured. thereto longitudinal bars, such as Z bars 9, and transverse bars 10.

To each end oi the door at its outer edge is secured a roller 11 running on a ide or track 12 which curves upwardly rom its inner to its outer edge. To each end at the inner edge of the door is secured a roller 13 running on a track or guide 14 which slopes downwardly from t-he center of the car outwardly. The tracks or guides 14 on both sides of the longitudinal center of the Car .are formed from a single bar bent to the shape shown in F ig. l and having its ends riveted to a transverse plate beam l er ending from side to side of the car. The intermediate portion of the guide la may also be supported fromsaid Fbeam 15, .such as by a casting 16 riveted to said beam. `The tracks or guides l2 have their inner ends riveted to theV transverse beam while their outer ends are suitably secured, as at 18, tothe side plates oi the car. The journal pins` of the rollers 11 have their inner sides mounted in a portion of the door and their outer ends mounted in straps 19 `riveted to the end portions 6 ofthe doors. yThe journal pins'of the rollers 13 have their inner ends mounted in the end portions 6 of the doors and their outer ends supported by brackets '20 riveted to said end portions of the .door and lying'ubeyond or outside'of the guides.. er tracks 14- when the @one are ossea, as in Fig. 1, rollers at the inner edges of the doors "are supported on the high portions of .the guides or tracks 14, while the rollers at the outeredges of the doors are supported on the lower portions of the guides or tracks 12. The doors open by moving outwardly, the lrollers at the inner edges ruiming down :he inclined guides .or tracks 11i which are ignite steep so that the doors when released tall by e'ravity, while .the rollers at their outer er ges run upwardly on the' curve `guides or tracks l2, thus lifting the outer edges of the doors and permitting them to fall to open position without hitting the track. The center of gravity of the doors moves downwardlyso that the doorsl need not be pulled open, but. the inner edges of thedoors do not swing in the arc of circle as in the case of doors hung on hinges. The consequence is that a large discharge opening may be employed and the doors may be located comparatively low and still be enabled `to fully open without striking the track. This arrangement enables the center of gravity of the loaded car to be quite low and at the same time gives a very large discharge opening. Y

Any suitable mechanism may be used for operating the doors; As shown each door has connected thereto a pair (if/,links 22 whose outer ends-are connected 'i'o cranks 23 or rock shaftsQ4`mounted in suitable bearings and located longitudinally of the car. lNhen the cranks 23 and links 22 are brought into line asshown in full lines in Fig. 1 the doors are held in closed position, while when moved to the posit-ion shown in dot-ted lines in Fig. l the doors are allowed to drop to open` position. Suitable means, not shown, will be provided for locking the shafts 24 against accidental rotation when the doors are in closed position. To open the doors it is only necessary to release the shafts and start them vin their rotary movement in order to flex the toggles formed by crank 9.3 and links 22, after which the weight of the l-oad or of the doors themselves will force the doors to open position.

The arrangement shown can be used for discharging the load on either side or in the center. For discharging at the side only one of the doors is opened, whereas to discharge in the center bothidoors are opened.

The door arrangement described' is of rather simple construction and provides a very large discharge opening by means of doors located. close to the track. The arrangement furthermore insures the doors being held tightly closed, since the supports Jfor the inner edges of the doors are rigid and cannot yield.

What I claim is l. A railway c ar provided with a bottom discharge opening, a longitudinally arranged inclined door closing toward the center of the car, and guiding supports for the inner and outer edges of the door, the supports for the outer edge sloping upwardly and those for the inner edge sloping downwardly, whereby when the door is moving outwardly it assumes a greater inclination, and means for moving the door on its supportsi,

2. A railway car provided with a bottom discharge opening, an inclined door closing toward the center of the car, and guiding supports for the inner and outer edges of the door, said supports being located beyond the ends of the door opening and the supports for the outer edge of the door sloping upwardly and those for the inner edge sloping downwardly, and means for moving the door on said supports.

3. A railway car provided with a bottom discharge opening and provided with sloping body plates, aninclined door arranged to close said opening, supports for the inner and-outer edges of the door located under neath the sloping body plates, the supports for the outer edge of the door sloping up` wardly and those for the inner edge of the door sloping downwardly, and means for 'moving the door on said supports.

4. A railway car having a bottom di" charge opening and`provided with sloping end floor plates, a longitudinally arranged inclined doorclosing toward the center of the car, and guiding supports for the outer and inner edges of the door and ,located underneath the sloping end floor plates, the guides for the outer edge of the door sloping upwardly and those for the inner edge of the doorsloping downwardly, and means for moving the door on said guides.

5. A railway car having a bottom discharge opening, a longitudinally arranged door closing toward the center of the car, transverse beams at the ends of the door opening, guides for the outer and inner edges of the door on said transverse beams, the guidesfor the outer edgelof the door sloping upwardly and those forthe inner edge of the door sloping downwardly, and means for moving the door on said guides.

6. A railway car provided with a bottom discharge opening, doors closing said opening and having their edges contacting when closed and being lower at the contacting edges than at the outer edges, and supports on which said doors'are'movablymounted, said supports being arranged to permit the doors to move apart and simultaneously lower their meeting edges and elevating their outer edges.

7. A railway car havin a bottom discharge opening, doors closing said openin and having their meeting edges when close lower than their outer edges and having upturned end portions higher at the meeting edges of the door than at the outer edges, sloping body -plates under which said upturned edges close, and guiding supports for said doors arranged to permit the doors to move apart and simultaneously lower tleirmeeting edges and elevate their outer e ves. y

i?. A railway car having a bottom 4discharge opening, doors closing said openin and having their meeting edges when close lower than their outer edges, and guides or tracks on which said doors are movably mounted, said guides or tracks being so arranged that as the doors move apart their meetmg edges are lowered.

9. A railway car provided with a bottom i and means for moving the door on said tracks or guides. l

10. A railway car provided with a bottom discharge opening and with sloping end floor plates, a longitudinally arranged inclined door closing toward the center of the car, and guides or tracks for the ends of the doors located beyond the ends of the door opening, the guides or tracks for the inner edge of the door sloping downwardly' and outwardly, and means for moving the door on said guides or tracks.

11. .A pair of doors for dump cars movable bodily and inclined gether at their lower edges, oppositely inclined supporting means positioned beneath the center of the car for the inner portions. of the doors, oppositely inclined supports at opposite sides of the car for, the outer portions of the doors, and door actuating means.

l2. Anrinclined rolling door for dump cars mounted yto roll toward open position without raising its center of gravlty, and mechanism for rolling the door.

13. An inclined bodily movable door for dump cars mounted in opening to move i center of gravity7 transversely of the car and to vary its inclination while moving without raising its and door moving mechamsm. l

14. An inclined bodily Imovable door mounted in opening to move transversely of the car, and means for' increasing the inclination of the door while opening without elevating any part thereof while in contact with the material being dumped. v

15. An inclined bodily movable door for dump car mounted in opening to move transversely of the car to lower its center of .gravity whilek opening, and door moving mechanism.

16. An inclined rolling door for dump cars mounted to lower its center of gravity while opening, and mechanism for rolling the door.

17. A bottom for car hoppers consisting of oppositely inclined doors meeting at their lowermost edges, means for moving each ot' said doors bodily away from the other, and means for increasing the inclination of the doors as they move apart wit-hout raising their centers of gravity. l

18. In a bottom for car hoppers, a bodily movable door inclined 'when clo-sehsupports over which the higher and lower'po-ntions of the door move and arranged to mcreassxthe inclination of the door while dpening; andactuating means connected to the door above its lowermost portlon. l f

In testimony whereof I "have hereuntoL l set my hand.

E. W..SUMMERS. Witnesses:

MARIE K. DRArln/r, 'FREDERIC SCHAEFER.

Copies of this patent may be obtained for ive cents each, by addressing the Commissioner of Ilatents,

' Washington, D. C. 

